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        Authors and Referenced Works

Cardini, F. 2000. Castel del Monte. Bologna: Il Mulino.

Fangari, A.A.H. 2010. Graphic Analysis of Gothic Vaults. Master's Thesis, Universitat Politècnica de Catalunya, July 12, 2010. http://upcommons.upc.edu/pfc/handle/2099.1/12298 www.msc-sahc.org/upload/docs/new.docs/2010_AMRFangary.pdf.

Fitchen, J. 1961. The Construction of Gothic Cathedrals, A Study of Medieval Vault Erection. Chicago: The University of Chicago Press.

Götze, H. ed. 1998. Castel del Monte, Geometric Marvel of the Middle Ages. New York: Prestel-Verlag.

Heyman, J. 1995. The Stone Skelethon, Structural Engineering of Masonry Architecture. Cambridge: Cambridge University Press.

Huerta, S. 2001. Mechanics of masonry vaults: The equilibrium approach. Escuela T. S. de Arquitectura. Departamento de Estructuras, Universidad Politécnica. www.csarmento.uminho.pt/docs/.../page%2047-70%20_Huerta.pdf.

Huerta, S. and A. Ruiz. 2006. Some Notes on Gothic Building Processes: the Expertises of Segovia Cathedral. www.arct.cam.ac.uk/.../ichs/Vol%202%201619-1632%20Huerta.pdf.

Willemsen, C. 1984. Castel del Monte, Il Monumento Più Perfetto dell’Imperatore Federico II. Bari: Mario Adda Editore.